/* PART 1 - Before Lazy Load */

img[data-lazyloaded]{
        opacity: 0;
}

 

/* PART 2 - Upon Lazy Load */

img.loaded, img.litespeed-loaded{
         -webkit-transition: opacity .5s linear 0.2s;
         -moz-transition: opacity .5s linear 0.2s;
         transition: opacity .5s linear 0.2s;
         opacity: 1;
}